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bad852b61b
glibc/sysdeps
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Noah Goldstein bad852b61b x86: Replace sse2 instructions with avx in memcmp-evex-movbe.S 
This commit replaces two usages of SSE2 'movups' with AVX 'vmovdqu'.

it could potentially be dangerous to use SSE2 if this function is ever
called without using 'vzeroupper' beforehand. While compilers appear
to use 'vzeroupper' before function calls if AVX2 has been used, using
SSE2 here is more brittle. Since it is not absolutely necessary it
should be avoided.

It costs 2-extra bytes but the extra bytes should only eat into
alignment padding.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2021-10-23 13:02:42 -05:00
..
aarch64 elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
alpha elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
arc elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
arm elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
csky elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
generic elf: Fix e6fd79f379 build with --enable-tunables=no 2021-10-21 17:26:32 -03:00
gnu Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
hppa elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
htl htl: Reimplement GSCOPE 2021-09-16 01:04:17 +02:00
hurd Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
i386 elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
ia64 elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
ieee754 Fixed inaccuracy of j0f (BZ #28185) 2021-10-05 13:45:37 +02:00
m68k elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
mach hurd if_index: Explicitly use AF_INET for if index discovery 2021-10-18 01:39:02 +02:00
microblaze elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
mips ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340] 2021-10-19 06:40:38 -07:00
nios2 elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
nptl nptl: Use FUTEX_LOCK_PI2 when available 2021-10-01 08:09:13 -03:00
posix posix: Remove spawni.c 2021-09-27 12:44:25 -03:00
powerpc powerpc: Remove backtrace implementation 2021-10-20 10:40:53 -03:00
pthread elf: Avoid deadlock between pthread_create and ctors [BZ #28357] 2021-10-04 15:07:05 +01:00
riscv ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340] 2021-10-19 06:40:38 -07:00
s390 elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
sh elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
sparc elf: Fix dynamic-link.h usage on rtld.c 2021-10-14 14:52:07 -03:00
unix linux: Fix a possibly non-constant expression in _Static_assert 2021-10-20 14:22:43 -07:00
wordsize-32 Disable symbol hack in libc_nonshared.a 2021-09-27 07:46:25 -07:00
wordsize-64 Remove "Contributed by" lines 2021-09-03 22:06:44 +05:30
x86 elf: Remove Intel MPX support (lazy PLT, ld.so profile, and LD_AUDIT) 2021-10-11 11:14:02 -07:00
x86_64 x86: Replace sse2 instructions with avx in memcmp-evex-movbe.S 2021-10-23 13:02:42 -05:00